110 lines
3.4 KiB
Python
110 lines
3.4 KiB
Python
# Copyright (c) 2013 Paul Tagliamonte <paultag@debian.org>
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# Copyright (c) 2013 Gergely Nagy <algernon@madhouse-project.org>
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# Copyright (c) 2013 James King <james@agentultra.com>
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# Copyright (c) 2013 Julien Danjou <julien@danjou.info>
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# Copyright (c) 2013 Konrad Hinsen <konrad.hinsen@fastmail.net>
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# Copyright (c) 2013 Thom Neale <twneale@gmail.com>
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# Copyright (c) 2013 Will Kahn-Greene <willg@bluesock.org>
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# Copyright (c) 2013 Ralph Moritz <ralph.moeritz@outlook.com>
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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# DEALINGS IN THE SOFTWARE.
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import os
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import sys
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from contextlib import contextmanager
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docomplete = True
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try:
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import readline
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except ImportError:
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try:
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import pyreadline.rlmain
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import pyreadline.unicode_helper # NOQA
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import readline
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except ImportError:
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docomplete = False
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if sys.platform == 'darwin' and 'libedit' in readline.__doc__:
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readline_bind = "bind ^I rl_complete"
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else:
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readline_bind = "tab: complete"
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import hy.macros
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import hy.compiler
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from hy._compat import builtins
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PATH = [hy.compiler._compile_table,
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hy.macros._hy_macros,
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builtins.__dict__]
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class Completer(object):
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def __init__(self, namespace=None):
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if namespace and not isinstance(namespace, dict):
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raise TypeError('namespace must be a dictionary')
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self.namespace = namespace
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def complete(self, text, state):
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path = PATH
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if self.namespace:
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path.append(self.namespace)
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matches = []
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for p in path:
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p = filter(lambda x: isinstance(x, str), p.keys())
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p = [x.replace("_", "-") for x in p]
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[matches.append(x) for x in
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filter(lambda x: x.startswith(text), p)]
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try:
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return matches[state]
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except IndexError:
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return None
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@contextmanager
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def completion(completer=None):
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delims = "()[]{} "
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if not completer:
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completer = Completer()
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if docomplete:
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readline.set_completer(completer.complete)
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readline.set_completer_delims(delims)
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history = os.path.expanduser("~/.hy-history")
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readline.parse_and_bind("set blink-matching-paren on")
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try:
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readline.read_history_file(history)
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except IOError:
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open(history, 'a').close()
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readline.parse_and_bind(readline_bind)
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yield
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if docomplete:
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readline.write_history_file(history)
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